US3201757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification system
Assignee: TDK Micronas GmbH
•
Filing: 1960-09-29
•
Granted: 1965-08-17
•
Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Himmel Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN IDENTIFICATION SYSTEM FOR A FIRST SIGNAL HAVING A FREQUENCY WITHIN A GIVEN BAND COMPRISING FIRST MEANS TO PROVIDE SAID FIRST SIGNAL, SECOND MEANS COUPLED TO SAID FIRST MEANS RESPONSIVE TO SAID FIRST SIGNAL TO PRODUCE A SECOND SIGNAL HAVING A VARYING FREQUENCY CHARACTERISTIC IN SAID GIVEN BAND, SAID VARYING FREQUENCY CHARACTERISTIC INCLUDING THEREIN A REFERENCE FREQUENCY, AND THIRD MEANS COUPLED TO SAID FIRST AND SECOND MEANS RESPONSIVE TO SAID FIRST AND SECOND SIGNALS TO IDENTIFY THE RELATIVE POSITION OF THE FREQUENCY OF SAID FIRST SIGNAL WITH RESPECT TO SAID REFERENCE FREQUENCY.
Claim 2
Dependent Claim
92 words
AN IDENTIFICATION SYSTEM FOR A FIRST SIGNAL HAVING A FREQUENCY WITHIN A GIVEN BAND COMPRISING FIRST MEANS TO PROVIDE SAID FIRST SIGNAL, SECOND MEANS COUPLED TO SAID FIRST MEANS RESPONSIVE TO SAID FIRST SIGNAL TO PRODUCE A SECOND SIGNAL HAVING A VARYING FREQUENCY CHARACTERISTIC IN SAID GIVEN BAND, SAID VARYING FREQUENCY CHARACTERISTIC INCLUDING THEREIN A REFERENCE FREQUENCY, AND THIRD MEANS COUPLED TO SAID FIRST AND SECOND MEANS RESPONSIVE TO SAID FIRST AND SECOND SIGNALS TO IDENTIFY THE RELATIVE POSITION OF THE FREQUENCY OF SAID FIRST SIGNAL WITH RESPECT TO SAID REFERENCE FREQUENCY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |